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AR-15 fans can finally get their hands on a large quantity of 5.56x45 XM855 "Penetrator" ammo manufactured by Lake City via this 1000-round pack of Federal American Eagle ammo.

These 5.56x45 XM855 cartridges fire 62gr full metal jacket (FMJ) bullets with a steel penetrator inside with the famous green tip marking to easily identify the rounds. These bullets resist expansion and penetrate deeply. They are superior practice rounds for shooters who are looking to get serious about their training. These rounds carry a fast muzzle velocity of 3020 feet per second.

Lake City assembles these premium rounds using military-grade powders, primers, and new-production brass casings. The casings are non-corrosive and reloadable, and when stored properly they can sit on a shelf for an extended period of time.

For those of you who know and trust the quality of Lake City ammo, this is an unbelievable opportunity to stock up on 5.56x45mm XM855. Don't miss out! Order your 1000 round bulk case today!

It shoot nice and relatively clean but I had a few miss fires where the firing pin hitting the primer once wasn't enough to fire the bullet. This happened to me 2 times while going through 210 rounds. (Posted on 11/12/18)

Bargain Basement Nato rds.Review by Gamehog

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No FTF no FTE shoots 1" or better from my tailgate and sandbags. Using a 1-8 twist Stoner barrel. (Posted on 11/1/18)

ammo is the best of both worldsReview by Capt. Kirk

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I have purchased so much of this ammo that I can't let my wife know I have gone through the kid's college funds. Bushmaster... AR... about 8 thousand rounds, a couple of barrels and I can count the FTF's and other round related incidents on a couple of hands. Granted, I clean my weapons properly and often and use proper mags, but the value to quality ratio for this product is on target. Thank goodness they take plastic! (Posted on 10/24/18)

A real bargin.Review by Rainbow

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I've purchased 2,000 rounds of this ammo in the past. I've never had a FTF or jam in either of my .556's. My Ruger AR loves this stuff. I normally get sub-MOA groups when I do my part. (Posted on 7/10/18)

I'll keep using this stuff until they quit making it.Review by Rainbow

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I think the 62 grain bullet performs best in my rifle.This ammo burns very cleanly and the steel core penetrates mild steel plates at 100 yards. (Posted on 4/10/18)

Great productReview by Tuna Fish

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Never had a misfire or jam (Posted on 3/4/18)

Great productReview by Tuna Fish

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Never had a misfire or jam (Posted on 3/4/18)

great price, small consequenceReview by misfit3-3

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i bought these rounds and went to the range to break in my rifle, about 1/5th of the rounds did not fire and had the primer dented (after i went through them all) i kept and counted the rounds that didnt fire, pretty disappointed that alot of round didnt fire, but all in all, its a good price for the amount of rounds youre getting(Posted on 3/3/18)

Pretty good ammo.Review by Sam

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I notice with this ammo when using a Slidefire stock; I come across rounds that won't fire the first time. There is an indention on the primer, and I have to stop, and eject the round. This ammo still shoots pretty good and is relatively accurate. (Posted on 3/8/17)

Great ammo! Stock up before Jade Helm!!Review by zeuss11

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Goes bang, which is a good thing ! (Posted on 6/17/15)

Nice ammo, great vendorReview by Curtis Seaflush

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The ammo itself is fantastic. The reason I gave it four stars on reliability is because you need to expect some damaged casings. It doesn't say this on the description and they're more banged up than they used to be (in my experience). Bulkammo was great to deal with when it came to rectifying the problem even though I believe it was a manufacturer issue. Cheaper prices, ammo is in stock, great customer service and fastest shipping around is why I always check here first. (Posted on 12/19/13)

Fast shipping, great ammoReview by lcpl0311

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Bought this and fired roughly 300 rounds out of a 1000 had no FTF/FTE out of my Sig 516. Highly recommend this to anyone looking for bulk 5.56! Once I get paid again Im buying another case of this! No such thing as too much ammo!!! (Posted on 12/9/13)

Best ammo for home defense against foreighn and domestic.Review by FAHJR

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Everything you wanted and then a Whole Lot More. This is buy far this fastest shipping and best service ever received. you certainly get what you pay for. Nothing but quality here!
Do not shoot in a regular 223! Shoot only in a 223 combo 5,56mm x 45mm rifle only! (Posted on 11/18/13)

835 rounds fired to dateReview by Timothy

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fastest shipping ever, 1 jam but due to my son not replacing firing pin after brake down, i was hitting targets at 300 yards with full penatration 1/4 inch steel, honestly it amazed me, going to buy more and redo the range due to no actual range finder available. but even if i was miss calculated range it wasn't by more then 50 yards. Amazing AMMO. I will only shop at Bulk ammo. My AR is my life, simply amazing. (Posted on 11/6/13)

Great Stuff!Review by CavScout62

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This stuff really does the job through my custom 24" bbl long range AR!(Posted on 10/31/13)

The real deal!Review by Bushmaster55

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This ammo is tight shootin' and has all the power a 5.56 can deliver. Shot about 300-400 rounds this weekend and was happy with the results. (Posted on 10/29/13)

Great Product But a lot of dents.Review by Jonathan

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Like i said great stuff but when i was inspecting the brass cases upon arrival there where just 1 to many dents on most of all the brass casings (Posted on 10/23/13)

Excellent ! Will buy again. Review by Michael

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This is buy far this fastest shipping and best service ever received
From a web order. Will buy again (Posted on 10/3/13)

Nothing but good all the way aroundReview by Johnniepo

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Been buying this stuff since last winter (about 3500rds.) and have fired 400 or 500 rounds. Excellent and consistent performance with exceptional long range characteristics thanks to the 62grs. and the BT after the FMJ. All we need now is base bleed. Now that the sticker shock on all ammo has passed I must say it is a bargain. (Posted on 9/28/13)

62G vs 55G...... No ComparisonReview by MattDaddy

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Everything you wanted and then a Whole Lot More (Posted on 9/21/13)

Great ammo, great serviceReview by Itsacannon

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I really like this particular round, especially in my 1-7 A2 with a 20" barrel. Bulkammo does a GREAT job of getting my orders shipped out quickly, the prices are always at the bettter end of the scale, and if what I'm looking for is available anywhere it's going to be available here. I really like that they show how much they have in stock so you know you're not going to get a backorder notice, too. With ammo as expensive as it is no matter where you get it, it's nice that I don't have to worry about anything else when I order from Bulkammo. (Posted on 8/21/13)

great ammo just a little expensiveReview by renolaptop

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really can't complain about the price to much you certainly get what you pay for. nothing but quality here, and it was shipped very fast (Posted on 7/11/13)

thinking about buying? please disregard my product ratings!Review by This is for: SouthernShooter82

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could you post a video of you shooting through a tree? cause that sounds awesome

also any info on how these rounds effect longevity of an ar-15's components?
or are they comparable to fmj rounds on barrel/receiver wear (Posted on 5/29/13)

Not the best deal but what can we do .Review by Jim

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All good ,Thanks (Posted on 5/4/13)

Great Ammo....Prices getting back to normalReview by James

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Pulled out 2 mags and loaded them this morning, Fired them thru 2 different M-4s without any misfires in either gun!!! Lake City has always been the standard for me. Great Stuff (Posted on 5/4/13)

accurate and reliableReview by rancherman

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200 yards with 20 inch barrell all in 9 or 10 ring. Feeds well, no misfires.
Bulk Ammo is as good a price as anywhere in Commiefornia and the ammo is the real deal (Posted on 4/30/13)

Best penetrating round out thereReview by 88ruger

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I served 27 years and you would not beleve what i have seen the M855 round go threw. 1/2 inch steel like butter at 200 yrds. Thats what i call personal protection you cant hide behind anything. (Posted on 4/26/13)

Best Damn AP ammo ever.Review by SouthernShooter82

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I've already purchased 5,000 rounds of this steel core AP ammo for my 5.56 M4s and ARs. It's the best penetrating AR round that I've seen even compare with Nato AP rounds. The steel cored tip inside the FMJ makes this particular ammo VERY, VERY nice for instance, if someone was hiding behind a tree 150 yrds. away.....this ammo IS going STRAIGHT THROUGH A 12" diameter oak-- just to tag them behind it!!! I love this ammo; although it's expensive as heck -----But it's a good feeling having 30, 45, 75, and 100 round mags. ALL stocked with this AP, ass-bustin' ammo!! (Posted on 4/24/13)

This steel core ammo is the most penetrating ammo that I, civiallianly, has had the privilige to buy. Review by SouthernShooter82

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This ammo is GREAT! I actually got 1090 rounds in my pack--so there went another 30 rd. mag. filled, along with my Sure Fire 60 rd.stickmag.!! I've loaded up on 5000 rounds of this 5.56 ammo.....and i gotta say, "it feels great sitting on 60-100round magazines slap stocked with true AP rounds! NOBODY has that right to take that from us!! (Posted on 4/24/13)

Good AmmoReview by CK

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The shipping was as expected, 3 days later in my hands. The price is high, but the cheapest I have seen on the internet for this quality of ammo. The round count was 27 short, which did not make me happy as I was splitting the order with 2 other co-workers & it was my idea to go the 3-way split, so I took the short end of the stick. Customer service at Bulk Ammo gave me a credit on the 27, but I would rather have gotten the rounds. Overall, I was OK with my purchase & would buy from Bulk Ammo again. (Posted on 4/22/13)

Great ammo but expensiveReview by Drock

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The ammo preforms flawlessly but it is very expensive (Posted on 4/22/13)

Excellent Customer ServiceReview by 11Bang

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This company sets the standard for satisfying the customer! I usually never write reviews, however felt compelled to following my experience after my first order with you. Recieved shipment in only 3 days to my door step. Nicely packaged in a strong box. Quickly loaded all my mags up, with only 3 rounds short....not a big deal for me overall and recieved a credit after contacting customer service. Haven't shot yet, but all rounds look to be in excellent condition. Thanks, look forward to future business with you! (Posted on 4/12/13)

good overallReview by kevbuffalo

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short one round, at least after counting to 1,000 thats what i came up with, not to shabby. high quality product and service arrived in 3 days but had a long distance to go for ground delivery. price is good for the time all things considered, hopefully things with head back towards the old norm. (Posted on 4/11/13)

1st time BuyerReview by pete1961

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Very happy with everything... extremely fast shipping to Pennsylvania!!! Great communication also. (Posted on 4/10/13)

ammoReview by ONE EYED LOUIE

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Expensive, but that's what it is these days. great service, fast shipping, one rd. short, not to bad, would buy from these guys again. (Posted on 4/10/13)

First time buyerReview by Tex-Hogger

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Fastest shipping I have see. Ordered on a Sunday night and arrived Wednesday. Couldn't ask for better service. Best price per round that I could find. I will be ordering more ammo from Bulkammo.com. Don't hesitate ordering. I bet the price will be going down as the demand goes down also. Granted we won't be seeing early 2012 prices anymore, but this is the best out there. (Posted on 4/10/13)

This was my first order from bulk ammo, and I can say that the entire process was outstanding. I ordered on Monday, and it was waiting on me when I got home from work on Wednesday. Having split the order with my boss, I was pleasantly surprised to find the count 15 over (which my boss will never see). If I had placed the order this same time last year, I'd have to say that the price was poor, but by today's standards, it is very good (Posted on 4/2/13)

GreatReview by RT

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Ammo arrived quickly. Was short a few rounds and BulkAmmo credited me. Ammo runs through my weapons like champs. Will def buy from BulkAmmo.com again...soon! (Posted on 4/1/13)

GOOD AMMO Review by SOAR

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Shipping is fantastic ! Recieved my order in 2 days here in north florida. a few rounds short, but customer service is the greatest and refunded the shortage. 1 or 2 dinged rounds; nothing that would not allow them to shoot in my colt. Buy with cofidence :-) (Posted on 4/1/13)

ammo costReview by chuck

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Good stuff. (Posted on 4/1/13)

First time buyerReview by Kevin

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Great, quick shipment. Bulk round count was four rounds shy, but speed of shipment more than made up for the discrepancy. (Posted on 3/31/13)

Another First Timer but Not the LastReview by Terp

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Excellent performance and clean. Will be buying more soon (Posted on 3/29/13)

1000 rds 855Review by George

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Happy with what I recieved. Was on sale when I bought it . Went on sale again after I bought it. Was not happy with that but I guess I should be happy I got ammo at all considering whats going on (Posted on 3/27/13)

Great ammoReview by Bent

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This is by far the cleanest, most reliable ammo out there. Guess that why our military uses it. I was short a few rounds the last time i bought a box of this stuff as well, but i'll live. (Posted on 3/26/13)

Quality Ammo, FAST shippingReview by D-CELL

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Received all 1000RDS. I don't buy from anyone else anymore. 3 day shipping of quality ammo. Legit MILSPEC. If they list it, it's in stock. None of this putting it in a shopping cart then told "backorder". Price is slowly creeping down. I noticed it's listed about $40 cheaper today then when I bought it Saturday. How 'bout that too, order it on a weekend/Saturday, gets here Tuesday. Hooah. (Posted on 3/26/13)

In stock and fast shipping.Review by Pete

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Nice to see that the ammo that was advertised was actually in stock and I got it in 3 days. Ammo count was 27rds short but that is not the fault of BULKAMMO. BULKAMMO quickly credited me for the missing ammo and I would definately buy from them again.

Thanks BULKAMMO (Posted on 3/22/13)

Fast shipping. Great price.Review by Slingblade

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This price is probably the best you'll find anywhere for (always dependable) XM855.
Received 997 rounds. No complaints from me. Shipping took 3 days.
This will hold me until the price of 5.56 (hopefully) drops. (Posted on 3/21/13)

In these Times Can't Beat ItReview by Mashure

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The Customer Service was great about shipping next day. Good clean Mil. spec ammo. Will surely buy from them in future. Keep up the Good Work ! (Posted on 3/18/13)

Nice ammo and it is availableReview by GGJ

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Very fast shipping and the best price around at this time. Cycles well. Received exactly 1000 rounds. Thanks (Posted on 3/16/13)

Not perfect, but the best deal I've seen around!Review by Alec

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With the rush on 5.56 and .223, I decided to get a bulk box to tide me over until prices come back down. Bulkammo has the best price around for 1000 rounds of M855 green tips; everywhere else I've looked is out of stock or charging more than $1 a round.
My box came with 963 rounds, so the measure-by-weight system used by Federal/Lake City shorted me almost a mag's worth, but all in all I'm satisfied with my purchase.
These green tips cycled nicely through my S&W M&P-15, and were plenty accurate for my needs. The brass looks like once-fired so they'll be great for reloading, but I'm sure I'll buy from here again.
My order was filled quickly, and shipping was fast and discreet; the ammunition came overboxed in a nondescript box with the required ORM-D sticker for live rounds. (Posted on 3/14/13)

Great AmmoReview by CMP

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Best price for the ammo i could find. shipping was VERY fast! I put 500 rounds through my Core 15 and had maybe 2 misfires. great stuff (Posted on 3/13/13)

First Time BulkAmmo BuyerReview by Mark

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My first transaction with BulkAmmo was fantastic! The communication was great and the shipment arrived in two business days...amazing. The price was okay given the times, however (I almost hate to mention) but I only received 972 out of the 1000 rounds ordered. I noticed another buyer had the same "shortage" experience so maybe it's normal. After all, Every round counts. (Posted on 3/12/13)

Good ammo Review by Ryan

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Bulkammo is very good at getting the product to you quickly, however beware of these loose rounds boxes. Mine only had 972 in it instead of the 1000 as advertised! (Posted on 3/9/13)

The 5.56 is excellent!Review by Anthony

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I tried the 5.56x45 and was very pleased with it. It works great in my Ruger Mini-14 Rancher but I understand it may be too hot in a Ruger Target. Had a slight issue with Ammo but customer service was excellent and I am now very pleased. The price was higher than I had hoped, but try and find some elsewhere. (Posted on 3/6/13)

Great Service from Bulk AmmoReview by SWA Shooter

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Fast processing and shipping from Bulk Ammo all around Great Service. Ammo came clean and all in great shape. Cant wait for 2 things though, 1 the price to come back like it was and 2 R&R so I can empty most of these rounds down range. Otherwise cycled a couple rounds through and shot clean no issues. (Posted on 3/4/13)

okReview by butch

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i got 975 out of 1000 , Bulkammo service was the best , just shorter on ammo (Posted on 3/3/13)

great ammo fast shippingReview by Mic

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I have put a 100 rounds down range at 100 yds 1.5 in group can't ask for more than that (Posted on 2/25/13)

Fastest service in the business !Review by Cort

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Very impressed on how quickly I received it. It feeds, fires and goes through most anything, watch your back drop!
Now if they would get some bulk .300 Blackout or Wisper and .338 Lapua Mag in, the world would be perfect.
Thanks Bulk Ammo, keep up the good work-Semper-Fi! (Posted on 2/23/13)

Wow!Review by Chilly

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Statistically speaking, we have a better chance of President Obama reducing the national debt than having a single of these rounds failing to fire. (Posted on 2/21/13)

Very pleasedReview by Robby

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I placed my order on a Tuesday evening and received it on Thursday.
This is the second order I have placed with Blukammo.com and I will continue to do business with those great people.
Here in Indy it's a bit hard to buy some ammo.
Great Job Guys, Thanks

Rob (Posted on 2/21/13)

Love itReview by MP200183

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Although expensive, it is nice knowing I have a piece of mind sitting in my safe in case something happens. The ordering process is easy and it got to me VERY fast! No dents or defective rounds. I will be back for more! (Posted on 2/11/13)

Great ammoReview by JDub

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Price is high but this is the best ammo on the market (Posted on 2/9/13)

Best ammo, fast and good service, price mehReview by Mark

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Lake city ammo runs in your 5.56 AR like 98 octane in your V8. If the desire out weights current prices. This is the stuff to run. Not that bore eating bi metal jacket steel crap from Russia. Careful what you load in your weapon, it could end up wearing out your bore and choking up your gas block. You get what you pay for, just wish we were at 05 prices. (Posted on 2/1/13)

Great ammo. Great Customer ServiceReview by mm

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Great ammo. no failures. only issue now is due to demand a little more money but still a good deal. (Posted on 12/30/12)

The Best Ammo for your ARReview by chilly

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It doesn't get any better! if you're looking for ammo that has proven itself in combat and numerous penetration tests on Youtube, this is the ammo for you. I had been buying various cheap 223 ammo until i had a little money, splurged and bought a box of the "green tips". I can only say, "Wow" what a difference. You won't be disappointed. (Posted on 12/13/12)

very good dealReview by nick5459

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like an happy with product but im missing 5 rounds ! (Posted on 11/28/12)

Excellent AmmoReview by snowman

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Have bought this ammo several times, this was the best buy I have found. (Posted on 11/19/12)

Good quality, wish it was a bit cheaper.Review by Russ

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Great ammo. Very reliable none have failed yet. I would recommend this ammo to anyone. I will buy again when I need more. Fast shipping and great service. Thanks. Price reduction would be nice. (Posted on 10/21/12)

Top notch ammoReview by FoxFeather

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Ammo in excellent condition considering bulk packaging. Very good pricing and box was not short on the round count. Received order quickly. Thanks! (Posted on 10/13/12)

Bulkammo RulesReview by John

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Easy to order. Fast shipping. Great product and most importantly a great price. (Posted on 10/11/12)

never had a problem with this ammoReview by dpre

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have put around 1500 rounds through my Rock River ar and mini 14 never had a jam and very accurate. No worries with this ammo. (Posted on 7/12/12)

Great Stuff!Review by IllianaPreper

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Although I am new to the AR world, I bought this ammo based on the reviews. First of all, Bulk Ammo had incredibly fast shipping. Second, I put about 200 rounds through my new Stag 2TL and had NO issues at all. Bulk Ammo usually has the best prices and everything in stock. Don't hesitate to buy this ammo! (Posted on 8/23/11)

About a third of the way through the box. Every round performed perfectly. Based on price and performance, I will continue buying this product and I'll only buy from BulkAmmo.com - excellent service. (Posted on 7/17/11)

great stuffReview by deez

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obviously great ammo, best deal i found by a good bit, and fast shipping. i'll definitely be re-ordering when this box gets too light. (Posted on 7/5/11)

The Best 5.56X45 NATO ammo you can buy.Review by Large Larry

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If you need true NATO spec. ammo for your AR this is about the best you can buy. As most people have found out over the years, L.C. is the best. If your firearm is marked 5.56X45 make sure you use 5.56 ammo in it. If it's marked 223cal. use only 223 ammo in it. (Posted on 5/31/11)

Great ammoReview by JimR

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Just bought another 840 rounds (Posted on 5/31/11)

Recieved 4-16-2011Review by Keystoneprepper

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Recieved in 2 days from order. Great ammo but found 2 rounds with chipped casings.... Also was missing 2 rounds as my wife and I counted it twice as we manually installed onto 10 round stripper clips...still a great buy from a great company...4 out of 5 (Posted on 4/22/11)

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Thank you for giving us your feedback and thoughts on this product. Your experience will help other shooters determine if an ammo is worth shooting and lets us know if we should continue to carry the rounds. If you don't mind, please also include an email address so we can get in touch with any questions or if there is anything we need to do to ensure your shooting experience was everything that it should be!

Our customer service team has published this Q&A information as a free service to the shooting community.
Please note that BulkAmmo.com expressly disclaims any and all liability with regard to how the shooting community
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A: From a quality and performance comparison, you will not notice a difference between the two. While there is always talk of the XM's being duds and underperforming, we, and our customers have not discovered any issues with these rounds. The X designates the lot numbers that will be used for private/ civilian use versus military/ law enforcement use.

A: The steel core featured in this 5.56x45 NATO green tip round is not classified as an Armor Piercing (AP) round. The steel core will penetrate targets easier than similar rounds without a steel core. The rounds may be prohibited in some indoor ranges as these will not pass the magnet test.

A: The green tips on these 5.56x45 rounds indicate the bullet features a steel core. There will be no tracer element included on the bullet. Rounds that have an orange ink painted in place of this green tip will indicate a tracer round.

A: If your rifle ( Bushmaster, S & W etc.) has a marking of .223 Rem but does not include 5.56x45 NATO, the rifle has been designed to shoot .223 ammo only. The 5.56x45 is very similar, though its increased pressure may be unsafe for the .223 chamber and is simply not worth the risk shooing.
If you rifle has both caliber markings, or just 5.56, both 5.56 and .223 ammo will work in your rifle.

A: Correct. This 5.56x45 NATO ammo will work well for your Colt. The rounds do contain steel which may not be allowed in some indoor ranges. This will not cause any harm to your rifle. The brass casings are excellent for reloading and do not contain any corrosive components.

All the bulk ammunition for sale you see on our website is in our warehouse and ready to ship. If you place your order today, your bulk ammo will be shipped at the first available opportunity - no disappointing "out of stock" emails or delays here!